2011 Hyundai Elantra.
2011 Hyundai Elantra. Successful sedans in the U.S. market all have a distinct silhouette and Day Light Opening (DLO – a designer’s term for the side glass) and Hyundai Elantra is no different. Along Elantra’s sides are Sonata‘s flowing lines, with the addition of a strong undercut feature line starting at the front door. These lines, along with muscular wheel arches and a sleek roofline, create a memorable and spacious package. Flowing lines also lead to an aerodynamic body. The drag coefficient for the 2011 Hyundai Elantra is an exceptionally low 0.28 that compares favorably to the Chevrolet Volt (0.29).